<template>
  <!-- 登录页面的整体盒子 -->
  <div class="login-container">
    <!-- 登录的盒子 -->
    <div class="login-box">
      <!-- 标题的盒子 -->
      <div class="title-box"></div>
      <!-- 登录表单 -->
      <el-form :model="loginForm" :rules="loginFormRules" ref="loginFormRef">
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" placeholder="请输入用户名" prefix-icon="el-icon-user"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" placeholder="请输入密码" prefix-icon="el-icon-lock"></el-input>
        </el-form-item>
        <el-button type="primary" class="btn-login" @click="loginUser">登录</el-button>
        <el-link type="info" @click="$router.push('/reg')">去注册</el-link>
      </el-form>
    </div>
  </div>
</template>

<script>
import { loginAPI } from '@/api/user.js'
export default {
  name: 'Login',
  data() {
    return {
      loginForm: {
        username: '',
        password: ''
      },
      loginFormRules: {
        username: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { pattern: /^[a-zA-Z0-9]{1,10}$/, message: '用户名必须是1-10位字母数字', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { pattern: /^\S{6,15}$/, message: '密码必须是6-15位非空字符串', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    loginUser() {
      this.$refs.loginFormRef.validate(async item => {
        if (!item) return
        console.log('输入格式正确,前往验证用户密码是否正确')
        const { data: res } = await loginAPI(this.loginForm)
        console.log(res)
        if (res.code !== 0) return this.$message.error(res.message)
        this.$message.success(res.message)
        // 存储token
        this.$store.commit('muser/updateToken', res.token)
        this.$router.push('/')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login-container {
  height: 100%;
  background: url('../assets/images/login_bg.jpg') center;
  background-size: cover;
}
.login-box {
  width: 400px;
  height: 270px;
  background-color: #fff;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border-radius: 3px;
  padding: 0 30px;
}
.title-box {
  height: 60px;
  background: url('../assets/images/login_title.png') center no-repeat;
}
.btn-login {
  width: 100%;
}
</style>
